kohler



G. Kb'HLER. DEC'D. m. KIOIHLER, NE: BAUCH, wmow, AND GUARDIAN or mmon cuuuaau r. AND H. Kb'um.

RAIL 101m.

APPLICATION FILED OCT- 16, ms.

1,324,906. Patented Dec.16,1919.

UNITED STATES PATENT onnron.

GEORG KbHLER, DECEASED, LATE 0F CASSEL, GERMANY, IBY MATHILDE KUHLER, Nn BAUCH, WIDOW, AND GUARDIAN OF MINOR CHILDREN FRANZ AND HANS KijHLER.

RAIL-JOINT.

Specification of Letters Patent.

Patented Dec. 16, 1919.

Application filed October 16, 1918. Serial No. 258,436.

To all whom it may concern:

Be it known that GEORG KoHLER, deceased, late a citizen of the Empire of Germany, and resident of Cassel, Germany, has invented certain new and useful Improvements in Rail-Joints, of which the following is a specification. 1

The present invention has reference to an improved rail joint and relates more specifically to that type of joints in which oppositelydisposed fish plates are bracingly interposed between the tread and the base flanges of the abutting rail sections, and the object of the invention is to obviate certain defects attaching to many prior rail joint constructions, by so constructing, arranging and operatively stressing the fish plates that they will not buckle or otherwise be deformed and will, even under the severest strain, always operatively contact over the total area of therespective fishing surfaces.

In order to make the invention more readily understood it will now be described in detail in connection with the accompanying drawings, in which-- Figure 1 represents a vertical cross-section through the improved joint;

Fig. 2 illustrates a perspective side elevation thereof, partly in section, and

Fig. 3 is a similar view of a modification.

The rail sections consist of the head or tread portion a, the web I), and the foot or base portion 0, and the web is perforated to receive the clamping bolts, all in the well known manner. The fish plates at are of approximate U-shape with outwardly flaring flanges e and f respectively and their webs g are drilled in register with the bolt holes in the rail webs. These angle plates closely fit in between the lower bevel face of the rail'head and the upper bevel face of the rail foot, making an intimate operative contact all over the respective fishing area, the upper angle plate flanges 6 being correspondingly shorter than the lower flanges f, as clearly shown in the several figures, in accordance with the extent of the rail flanges. A certain amount of play, as at w,

or press plate 71., with a certain amount of play allowed, as at y. This play, as well as the one between the fish plate web and poses.

the rail web, serves for tightening-up pur- Fish bolts 2' are finally passed through the assembled parts, for operatively clamping them together.

The described construction and connection'of parts makes for a very effective joint, inasmuch as the pairs of plates, by their nested arrangement between the rail flanges, very favorably take care of the forces acting on the rails, especially of the vertical stresses, and also for the reason that the web of the angle plates, obviously, cannot be deformed by even the strongest action of the fish bolts. A loosening of the parts, due to wear, need not be feared, nor a break of the angle plate at the notchings 7c, inasmuch as the press plates (Fig. 2) bridge over these notchings.

The improved construction constitutes four-sided rail bracing members, one for each rail side, which when properly interconnected forma joint of high rigidity and able to stand up under the severest strain without appreciable wear.

Instead of employing press plates 72. of even length with the angle plates (Z and passing long bolts 71 through the nested parts, as shown in Fig. 2, there may be used several short press plates m-for each long angle plate, as shown in Fig. 3, in which case the angle bars are connected to the rail ends intermediate these short press plates by shorter bolts a.

What is claimed as new is In a rail joint, in combination with the rail sections, oppositely disposed angle plates of approximate U-shape with outwardly flaring flanges, adapted to closely register in the longitudinal rail channels with a certain amount of play between the rail web and the facing angle plate webs,

each angle bar, spaced apart in the hollow thereof and contacting therewith over practically all of their upper and lower bearing surfaces but with a certain amount of play between the vertical middle portions of the respective plates, means for operatively interconnecting said rail ends, said angle plates, and said press plates, and means intermediate said press plates for intercon necting solely the rail ends and the angle plates.

vMATHILDE KGHLER, NEE BAUCH.

Widow of Georg Kohler, deceased. 

